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Thread: ATK Failed because ATO Switch 1 was stuck on

  1. #1
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    ATK Failed because ATO Switch 1 was stuck on

    Hi,

    I woke up this morning and noticed my tank was quite loud. I looked and the water was lower then it should be. Checked my logs and notice my ATK hadn't turned on in over a day. It turned out the sensor was stuck on because of some salt build up. I cleaned the sensor and all was back to normal. I was trying to program my error messages to let me know if the ATO Switch 1 stays closed for longer then say an hour. However it doesn't seem to like what I was putting in. Anyone know the proper code for this?

    This may not turn out to be a huge issue as I know now that I have to clean those sensors on a regular basis. Still wouldn't mind having some alert that would let me know if the ATK hasn't run in a while.


    Thanks, Ryan

  2. #2
    Frequent Visitor rkpetersen's Avatar
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    I had the same issue, except in my case it wasn't salt, it was failure of the sensor itself in CLOSED position. It was actually leaking crud at the connector! Take a look:

    leaking neptune optical sensorb.jpg


    I replaced it and the ATK worked again. Now I brush the face of each sensor with an old toothbrush to remove any built up salt or algae growth, as part of my weekly maintenance routine.

    I also had the same thought you did - I need a warning if this happens again. You need to create a virtual outlet; here's mine. I set it to 6 hours.

    [ATOLoClsd360]
    Set OFF
    If ATOLo CLOSED Then ON
    Defer 360:00 Then ON

    I also felt it would be useful to be notified if the low sensor stayed open for too long. In this case, for me, it's 1 hour (60 min). Another virtual outlet:

    [ATOLoOpen060]
    Set OFF
    If ATOLo OPEN Then ON
    Defer 060:00 Then ON


    And then these statements go in your alarm outlet:

    If Output ATOLoOpen060 = ON Then ON
    If Output ATOLoClsd360 = ON Then ON

  3. #3
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    They have a pretty good set of fail safes if the ATK runs for too long, but don't have anything for when the ATK hasn't been running.

    Thanks so much!!

  4. #4
    Frequent Contributor zombie's Avatar
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    Quote Originally Posted by OneFourShutter View Post
    They have a pretty good set of fail safes if the ATK runs for too long, but don't have anything for when the ATK hasn't been running.

    Thanks so much!!
    Considering you have custom programming at your disposal, you can do fail safes for both. I have examples for exactly that in a how to guide I wrote a while back (before ATK so it's all coded for floats which are backwards from opticals).

    https://forum.neptunesystems.com/sho...-ATO-Failsafes


    You might be an engineer if...You have no life and can prove it mathematically.

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